http://archive.clarionledger.com/VideoNetwork/3696925248001/Investors-get-antsy-over-Amazonhttp://cdn.newslook.com/67/67840ba32ff3749a7f646b673d31dbb7/mp4_low/67840ba32ff3749a7f646b673d31dbb7-mp4_low.mp4http://archive.clarionledger.com/VideoNetwork/3696925248001/Investors-get-antsy-over-Amazonhttp://cdn.newslook.com/67/67840ba32ff3749a7f646b673d31dbb7/images/frame_ext.jpgInvestors get antsy over AmazonShareholders cut $16 billion off Amazon's market value, six times what it earned since it went public. Several brokerages cut their price targets. Fred Katayama reports.FinanceRob CyranReutersnewslookindiaFred KatayamaWorldAmazonitalyspainChina01:26